Data Exchange


VoIP ( Voice Over Internet Protocall) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over internet protocol

Wireless Networks

A wireless network is a network where wires are non-existant this can be achieved by using radio waves or microwaves to maintain connection

Transmission mode

Transmission mode means transferring of data between two devices it is also called communication mode these modes direct the direction of flow of information

Parallel and serial transmission

Digital data transmission can occur in two basic modes: serial or parallel. Data within a computer system is transmitted via parallel mode on busses with the width of the parallel bus matched to the word size of the computer system. Data between computer systems is usually transmitted in bit serial mode

In parallel transmission, multiple bits (usually 8 bits or a byte/character) are sent simultaneously on different channels (wires, frequency channels) within the same cable, or radio path, and syncorised to a clock


Universal Serial Bus, is an industry standard that defines the cables, connectors and communications protocols used in a bus for connection.

Bi-directional Transmission

Communications mode that is capable of transmitting data in both directions, but not at the same time.